<h2>Answer </h2>
Lactic acid fermentation ocurrs in muscle cells when oxygen is in low supply
<u>Explanation</u>
The lactic acid fermentation in the muscles cell occurs when muscles work faster and it occurs due to the lack of supply of oxygen in the cell. The lactic acid fermentation is a type of aerobic respiration. The lactic acid formation is due to excessive exercise by individuals and oxygen which is essential for living, is less in the muscle which causes the feeling of burning in the muscles.
Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
Interphase. Reason: interphase is the first stage of mitosis but since mitosis is the division of the nucleus prophase is actually the first stage.
Stress is not a symptom of Gingivitis.